Key seismic exploration techniques for identifying small faults and carbonate fracture-cavity bodies in Yingxiongling structural belt,Qaidam Basin
A set of key techniques of seismic exploration is proposed for the identification of deep carbonate frac-ture-cavity bodies and small faults in the Yingxiongling structural belt of the Qaidam Basin.First of all,from the aspect of data acquisition,the imaging accuracy of small faults can be improved by expanding the observa-tion orientation,using a small combination of excitation and reception,and adopting an even arrangement of source and receiver points.From the aspect of seismic data processing,OVT domain multi-dimensional fidel-ity noise suppression technology and thick surface Q compensation processing technology can be used to im-prove the signal-to-noise ratio and fidelity and effectively increase the bandwidth and resolution of seismic data.From the aspect of seismic data interpretation,the sub-azimuth data volume and artificial intelligent fault identi-fication technology can be used to identify small faults effectively,and the anisotropic strength attribute can be used to identify the fracture-cavity body effectively.The techniques can be used for reference in other similar areas.
Yingxionglingcarbonate rockfracture-cavity bodysmall faultkey techniques of seismic exploration
万方数据
维普
